In general, the term “menstruation” refers to the time needed to recuperate after a miscarriage, so generally speaking it is about two weeks to one month. Miscarriage is divided into early miscarriage and late miscarriage. If it is an early miscarriage before 12 weeks of pregnancy, it is normal to rest for two weeks according to the national law. For late miscarriage after 13 weeks of pregnancy, it is normal to take a month off. Because the embryo is relatively small before the 12th week of pregnancy, the recovery after the abortion is relatively fast, and the body can return to normal in two weeks’ time. In the case of late miscarriage within 13-28 weeks of pregnancy, the embryo has basically formed and the miscarriage is more damaging to the body, so it is necessary to rest for a longer period of time. In addition, the patient must prohibit sexual intercourse and tub bathing during the menstrual period, to eat and drink regularly, to avoid staying up late and overworking; to pay attention to body cleanliness and hygiene, to avoid the development of postpartum infection.